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THE ACTION OF LECITHIN AND CALCIUM DIPS IN THE CONTROL OF BITTER PIT IN APPLE FRUIT.

Author(s) : WATKINS C. B.

Type of article: Article

Summary

ADDITION OF 1% LECITHIN (PHOSPHATIDYL CHOLINE) TO 4% CALCIUM DIPS INCREASED INTERNAL CO2 LEVELS AND DECREASED O2 LEVELS IN APPLE STORED AT 276 K (3 DEG C). THIS EFFECT WAS GREATER THAN THAT FOUND WITH LECITHIN ALONE. AT 291 K (18 DEG C), RESPIRATION AND ETHYLENE PRODUCTION WERE REDUCED SLIGHTLY BY CALCIUM, BUT TO A MUCH GREATER EXTENT BY LECITHIN. THE CLIMACTERIC RISE WAS ALSO DELAYED BY LECITHIN TREATMENTS. AT 276 K, ETHYLENE PRODUCTION WAS BOTH DELAYED AND REDUCED BY LECITHIN TREATMENTS, BUT NO INFLUENCE ON CO2 PRODUCTION WAS DETECTED. THE BENEFICIAL EFFECTS OF LECITHIN PLUS CALCIUM IN BITTER PIT CONTROL PROBABLY RESULT FROM RAPID MODIFICATION OF GAS EXCHANGE TOGETHER WITH INCREASED CALCIUM UPTAKE.

Details

  • Original title: THE ACTION OF LECITHIN AND CALCIUM DIPS IN THE CONTROL OF BITTER PIT IN APPLE FRUIT.
  • Record ID : 1983-0505
  • Languages: English
  • Source: J. am. Soc. hortic. Sci. - vol. 107 - n. 2
  • Publication date: 1982/03
  • Document available for consultation in the library of the IIR headquarters only.

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